CN102774126A - Four-border synchronous automatic stretching mechanism for SMT (surface mount technology) stencils - Google Patents
Four-border synchronous automatic stretching mechanism for SMT (surface mount technology) stencils Download PDFInfo
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- CN102774126A CN102774126A CN 201210236926 CN201210236926A CN102774126A CN 102774126 A CN102774126 A CN 102774126A CN 201210236926 CN201210236926 CN 201210236926 CN 201210236926 A CN201210236926 A CN 201210236926A CN 102774126 A CN102774126 A CN 102774126A
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Abstract
The invention relates to a four-border synchronous automatic stretching mechanism for SMT (surface mount technology) stencils, which comprises a base, fixed borders, guideways, movable borders, racks, transmission gears, driving gears, air cylinders and motors, wherein the fixed borders are arranged on the base, and the movable borders are connected with the fixed borders. The four-border synchronous automatic stretching mechanism for SMT stencils adopts a four-border simultaneous pressing and stretching method, and the four borders are synchronized in the process of stretching, so that the applied force is uniform; four-border stretching ensures that the tension on an SMT stencil is uniform in all directions; and moreover, the whole process is automatically carried out, operation is convenient, and the stability is good.
Description
Technical field
The invention belongs to SMT template technical field of processing equipment, relate in particular to a kind of SMT template four limits stretch tight automatically synchronously the net mechanism.
Background technology
In the SMT manufacture field; Before reinforcement, must stretch tight the SMT template flat be one to have the plane of certain flatness to guarantee to add man-hour this template; Like this in follow-up Laser Processing; Can guarantee that just cutting head at the whole breadth middle distance SMT template each point height basically identical of processing, guarantees crudy uniformity and stability, guarantee that it is the quality necessary condition that guarantees follow-up Laser Processing SMT template that the SMT template stretches tight it flat through the net that stretches tight before processing.
Be applied to the net mechanism of stretching tight of SMT template in the past, generally be with two relative edge's clampings of SMT template on a fixed or movable screen frame, and it is compressed on this fixed or movable screen frame, through two relative edge's application of forces, whole SMT template tightened.This method is because two opposite side through clamping SMT template only; And only be the relative application of force in the network process that stretches tight, will inevitably cause the SMT template near zone line and two side areas discontinuity, when causing zone line to be tightened; And two side areas also is in relaxed state; And zone line tension force is relatively large than two side areas, causes in follow-up cutting process zone line to answer Stress Release big and cause the cutting feature distortion, causes the final products defective even scraps.In addition, adopt this net mode that stretches tight, must cause the zone line flatness to be compared to two side areas can be better; The two side areas flatness is uncontrollable; Different people stretch tight the net effect all inequality, the SMT formwork integral flatness after finally causing stretching tight is not high, the height of the relative SMT template of the cutting head when influencing cut on the cutting head; Thereby make at SMT template each point cutting effect inconsistently, finally influence SMT template product processing quality.
Therefore, industry is badly in need of exploring a kind of scheme, with the net mode that stretches tight of the present prior art of better improvement, to guarantee the final SMT template network plane degree that stretches tight.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of SMT template four limits net mechanism of stretching tight automatically synchronously, problem such as solve in the past that the SMT web plate stretches tight manually that net is slow, poor stability, the net back SMT stencil plane degree that stretches tight are difficult to control, SMT template tension force is inhomogeneous.
For realizing above-mentioned purpose, technical scheme of the present invention is:
Stretching tight automatically synchronously and net mechanism in a kind of SMT template four limits, comprises by base, and the fixed edge, guide rail, the active edges that is connected with fixed edge, tooth bar, travelling gear, driven wheel, cylinder and the motor that are arranged on the base are formed.
Further, also comprise the supporting seat 1 that is connected on the base 4.
The invention has the beneficial effects as follows: adopt four limits to compress and tighten mode simultaneously, carry out synchronously on four limits in the network process that stretches tight, uniform force application; The four limits net that stretches tight makes that each is to uniform tension in order on the SMT template; And whole process is full-automatic the completion, and is easy to operate, good stability.
Description of drawings
Fig. 1 be SMT template of the present invention four limits stretch tight automatically synchronously the net mechanism structural diagrams.
Fig. 2 is that steel disc of the present invention clamps sketch map.
Fig. 3 is stretch tight automatically synchronously net mechanism's material loading state and SMT impaction state sketch mapes of SMT template of the present invention four limits.
Fig. 4 is that SMT web plate of the present invention is tightened schematic diagram.
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
According to shown in Figure 1; Stretch tight automatically synchronously and net mechanism in SMT template of the present invention four limits; Comprise that by base 4 fixed edge 2, guide rail 9, the active edges 3 that is connected with fixed edge 2, tooth bar 5, travelling gear 6, driven wheel 7, cylinder 8 and the motor 10 that are arranged on the base are formed.
According to Fig. 1, shown in Figure 2, fixed edge 2 and active edges 3 are connected through linkage,, compress with SMT templates in the middle of the fixed edge 2 or loosen being inserted into active edges 3 with active edges 3 one side jack-up or fall through cylinder 8.Fixed edge 2 has four, and every fixed edge 2 two ends separately are separately installed with a toothed rack 5; The then mutual vertical distribution of place, diagonal angle two toothed rack; On two toothed rack at place, diagonal angle, wherein connect a travelling gear 6 on the toothed rack, connect a driven wheel 7 on the other toothed rack; Driven wheel 7 drives travelling gear 6 and rotates, and servomotor 10 connects driven wheel 7 and for driven wheel 7 driving force is provided.Through totally four driven wheels 7 effects on four jiaos, four fixed edge 2 integral body are strained to the periphery, and finally driven the SMT formwork integral and tightened simultaneously to four limits.
This base 4 that stretches tight net mechanism automatically is fixed on the supporting seat 1; Base 4 is the closed-in construction of being made up of four edges; Be separately installed with two guide rails 9 on every limit of base 4; Two guide rails 9 on same limit connect a fixed edge 2 respectively, and this fixed edge 2 bottom surface in the outer part is fixed with two cylinders 8, and upper surface is inlaid with a depression bar 14 in the inner part.Active edges 3 is positioned at directly over the fixed edge 2; Directly contact with the SMT web plate; Connect fixed edge 2 and be made up of hinge 11 and hinge-rod 12 with the linkage between the active edges 3, the cylinder through being fixed on fixed edge 2 utilizes lever principle with active edges 3 jack-up that makes progress; The active edges inboard will be to pressed SMT web plate, and it is pressed on the depression bar 14 that fixed edge inlays.For increasing the frictional force of contact-making surface, active edges 3 inboard lower surfaces are connected rubber skin 13 with SMT web plate contact position, and depression bar 14 surfaces are connected rubber skin 13 with SMT web plate contact position.
According to shown in Figure 4; Wherein every fixed edge 2 two ends all are equipped with a toothed rack 5; And drive through a travelling gear 6 and a driven wheel 7 and to face two orthogonal fixed edges 2 mutually and be synchronized with the movement laterally; Each motor synchronous through on four jiaos is moved, and drives four fixed edges relative base on the guide rail on the base and outwards moves tension SMT web plate.
According to shown in Figure 3; Before stretching tight automatically synchronously and net mechanism's work in SMT template four limits, cylinder 8 will be downwards to kick up active edges 3 inboards, and this state is that SMT web plate easy to setup facilitates; After installing the SMT web plate; The cylinder 8 jack-up active edges 3 that will make progress, the active edges inboard will move downward this moment, thereby compress the SMT web plate.
The SMT template of the present invention four limits net mechanism of stretching tight automatically synchronously adopts the four limits network technology that stretches tight synchronously; Stretch tight the net before SMT template four limits are compressed simultaneously; And, guarantee that the SMT template is stressed evenly at four edge directions in the network process that stretches tight simultaneously to the tension of four limits, tighten the rear pattern plate uniform tension in order everywhere; Flatness is consistent, for SMT template following process provides the net mechanism of better stretching tight.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. stretch tight automatically synchronously and net mechanism in SMT template four limits, comprises by base, and the fixed edge, guide rail, the active edges that is connected with fixed edge, tooth bar, travelling gear, driven wheel, cylinder and the motor that are arranged on the base are formed.
2. stretching tight automatically synchronously and net mechanism in a kind of SMT template according to claim 2 four limits, it is characterized in that: also comprise the supporting seat that is connected on the base.
3. stretch tight automatically synchronously and net mechanism in a kind of SMT template according to claim 1 and 2 four limits; It is characterized in that: said fixed edge is connected through linkage with active edges; And pass through cylinder with active edges one side jack-up, compress will be inserted into the middle SMT template of active edges and fixed edge.
4. stretch tight automatically synchronously and net mechanism in a kind of SMT template according to claim 1 and 2 four limits; It is characterized in that: said fixed edge is connected through linkage with active edges;, compress or loosen with active edges one side jack-up or fall through cylinder being inserted into SMT template in the middle of active edges and the fixed edge.
5. stretch tight automatically synchronously and net mechanism in a kind of SMT template according to claim 4 four limits, it is characterized in that: said linkage is made up of hinge and hinge-rod.
6. stretch tight automatically synchronously and net mechanism in a kind of SMT template according to claim 1 and 2 four limits, it is characterized in that: fixed edge has four, every fixed edge two ends separately; Be separately installed with a toothed rack; Two toothed rack then mutual vertical distribution in place, diagonal angle on two toothed rack at place, diagonal angle, wherein connects a travelling gear on the toothed rack; Connect a driven wheel on the other toothed rack, driven wheel drives travelling gear and rotates.
7. stretching tight automatically synchronously and net mechanism in a kind of SMT template according to claim 1 and 2 four limits, it is characterized in that: the closed-in construction of said base for being made up of four edges.
8. stretching tight automatically synchronously and net mechanism in a kind of SMT template according to claim 7 four limits, it is characterized in that: the inboard lower surface of active edges is connected the rubber skin with SMT web plate contact position.
9. stretch tight automatically synchronously and net mechanism in a kind of SMT template according to claim 7 four limits; It is characterized in that: be separately installed with two guide rails on every limit of said base; Two guide rails on same limit connect a fixed edge respectively; This fixed edge bottom surface in the outer part is fixed with two cylinders, and upper surface is inlaid with a depression bar in the inner part.
10. stretching tight automatically synchronously and net mechanism in a kind of SMT template according to claim 9 four limits, it is characterized in that: the depression bar surface is connected the rubber skin with SMT web plate contact position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210236926 CN102774126A (en) | 2012-07-10 | 2012-07-10 | Four-border synchronous automatic stretching mechanism for SMT (surface mount technology) stencils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210236926 CN102774126A (en) | 2012-07-10 | 2012-07-10 | Four-border synchronous automatic stretching mechanism for SMT (surface mount technology) stencils |
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| CN102774126A true CN102774126A (en) | 2012-11-14 |
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| CN 201210236926 Pending CN102774126A (en) | 2012-07-10 | 2012-07-10 | Four-border synchronous automatic stretching mechanism for SMT (surface mount technology) stencils |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514977A (en) * | 2018-11-23 | 2019-03-26 | 安徽翔胜科技有限公司 | A kind of chip-resistance screen-tensioning machine |
| CN110116543A (en) * | 2019-06-04 | 2019-08-13 | 沃苏特电子科技（苏州）有限公司 | A kind of seine stress release technique |
| CN111845025A (en) * | 2020-07-02 | 2020-10-30 | 惠州市特创电子科技有限公司 | Printing screen and preparation method, construction method and application thereof |
| CN113696605A (en) * | 2021-07-26 | 2021-11-26 | 田菱精密制版（深圳）有限公司 | Optimization process of composite screen printing plate |
-
2012
- 2012-07-10 CN CN 201210236926 patent/CN102774126A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514977A (en) * | 2018-11-23 | 2019-03-26 | 安徽翔胜科技有限公司 | A kind of chip-resistance screen-tensioning machine |
| CN109514977B (en) * | 2018-11-23 | 2021-05-11 | 安徽翔胜科技有限公司 | Chip resistor net tensioning machine |
| CN110116543A (en) * | 2019-06-04 | 2019-08-13 | 沃苏特电子科技（苏州）有限公司 | A kind of seine stress release technique |
| CN110116543B (en) * | 2019-06-04 | 2020-12-18 | 沃苏特电子科技（苏州）有限公司 | Pull net stress releasing process |
| CN111845025A (en) * | 2020-07-02 | 2020-10-30 | 惠州市特创电子科技有限公司 | Printing screen and preparation method, construction method and application thereof |
| CN113696605A (en) * | 2021-07-26 | 2021-11-26 | 田菱精密制版（深圳）有限公司 | Optimization process of composite screen printing plate |
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Application publication date: 20121114 |